contains_self_reference.md
In constructive: Display Idiomatic Code to Construct Most R Objects

self reference fails properly

Code
  construct(env, opts_environment("predefine"))
Output
  ..env.1.. <- new.env(parent = baseenv())
  ..env.1..$x <- list(..env.1..)
  ..env.1..

Code
  construct(env, opts_environment("predefine"))
Output
  ..env.1.. <- new.env(parent = baseenv())
  ..env.1..$x <- 1 |>
    structure(foo = ..env.1..)
  ..env.1..

Code
  construct(env, opts_environment("predefine"))
Message
  {constructive} couldn't create code that reproduces perfectly the input
  i Call `construct_issues()` to inspect the last issues
Output
  ..env.1.. <- new.env(parent = baseenv()) |>
    structure(foo = ..env.1..)
  ..env.1..

Code
  construct(env, opts_environment("predefine"))
Output
  ..env.1.. <- new.env(parent = baseenv())
  ..env.1..$f <- (function() NULL) |>
    (`environment<-`)(..env.1..)
  ..env.1..